A journalist, working for a Japanese newspaper, was released on Wednesday after six days in detention, a paper official said.
Min Zaw was released late Wednesday, according to Tokyo Shimbun official Hisao Ichikawa. He said other details were not immediately available.
The reporter had been covering the ongoing pro-democracy demonstrations against the military regime, according to the paper.
The choice of the city of Helsinki is not incidental as the capital of Finland had hosted US-Soviet negotiations on the limitation of nuclear stockpiles in 1969